DDS power pulley belt size

[Fritter]

I have a few DDS power pulleys with the 3 "kidney" shaped holes in them.  I want to run one of these babies on my '64 but I don't know the belt size needed.  Anyone know? 

I assume it's a smaller size than the belt I currently have on there with my Santana power pulley.

[andy198712]

What's the pulley dia?

[Rick Sadler]

I have a few DDS power pulleys with the 3 "kidney" shaped holes in them.  I want to run one of these babies on my '64 but I don't know the belt size needed.  Anyone know? 

I assume it's a smaller size than the belt I currently have on there with my Santana power pulley.

9.5 x 850 for the power pulley

[Zach Gomulka]

I have a few DDS power pulleys with the 3 "kidney" shaped holes in them.  I want to run one of these babies on my '64 but I don't know the belt size needed.  Anyone know? 

I assume it's a smaller size than the belt I currently have on there with my Santana power pulley.

9.5 x 850 for the power pulley

A DDS pulley is smaller than a standard power pulley.

[Cheesepanzer]

You could try the old "rope trick" to get an approximate size and then try to get it matched up at your favorite parts place.

[Jason Foster]

You also could listen to Rick who knows whats up.

[Fritter]

Thanks for the answers, I'll check out the 9.5 x 850 with my teeny tiny Deano crank pulley.  This pulley should add at least 50 horsepower according to my calculations. 

[Fritter]

Update:  I don't think the 9.5x850 is the right size for the smaller Deano pulley.  9.5x850 is the size I am running now with my Santana power pulley.

I think I'll try the rope trick.   

[Cheesepanzer]

 

[Bruce]

The DDS pulley needs a shorter belt than a power pulley.
I had my DDS pulley machined to make the groove wider to take a wider (stronger) belt.  The belt I use is a Ford JB-331.  This belt is 33&1/8" long, or about 840mm.

[Tobi/DFL]

Hi!

The belt I used was 835mm long.

Tobi